Fukushima, the capital city of the Fukushima prefecture, is about 150 miles north of Tokyo and was hit by a powerful earthquake in March 2011, which caused a tsunami that smashed into the prefecture's eastern coast. That led to a major incident at the Fukushima Daiichi nuclear power plant.

More than 1,800 people are thought to have died as a result of the earthquake and tsunami, while the nuclear incident forced nearly 47,000 people to evacuate the area.

Bach is visiting Tokyo this week at a remarkably tense moment in the preparations for the next Summer Olympics.

Last month, Tokyo's new governor Yuriko Koike threatened to rip up Tokyo 2020's the venue plan when a panel of experts told her the final cost of the Games could top £24billion, four times the original estimate.

The organisers of the Games have already made some concessions to their plans to stage a "compact" Games based around Tokyo Bay but Koike's refusal to saddle tax-payers with "white elephants" has threatened to see more sports sent to different cities.

The proposed new venue for canoeing and rowing is one of those in Koike's cross hairs and Japanese reports have suggested the sports could be moved to the facilities used for the 2014 Asian Games in South Korea.

This would be deeply humiliating for Tokyo 2020's organisers and with them and the IOC desperate to avoid any further changes the pair have agreed to four-party talks with Koike's metropolitan government and Abe's national government.

Bach told reporters he was "fully committed" to a "sustainable and feasible" Games and was sure "significant savings" could be found on top of the £1.5bn already saved by moving basketball, taekwondo and track cycling to existing venues.

And several IOC insiders have suggested in recent weeks that Koike's estimate is too high as it includes infrastructure spending that should not be attached to the Games' budget, while some local experts have pointed out that post-2011 reconstruction has caused all building costs to rise in Japan.

With that in mind, the IOC plan to move some events to areas still dealing with the disaster could be a sensible compromise, with another option for canoeing and rowing being Tome, in the Miyagi prefecture north of Fukushima.

US president Donald Trump's criticism of American football players who kneel during the national anthem has sparked a mass increase in such protests around the NFL, as about 200 players sat, knelt or raised their fists in defiance.